Chemistry

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At a temperature of 20 degrees C or 68 degrees Fahrenheit, a (U.S.) gallon of pure water weighs about 8.34 pounds, whereas a...

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I try to steer my customers away from algecides that use copper, since copper tends to have bad effects in pool water, i.e....

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While the fumes of muriatic acid (hydrochloric acid - HCl) are slightly heavier than air, the oxidation reaction is highly...

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You can buy Ammonium Nitrate at your local grocery store. It is in a product called Ace, and it is an insta-cold pack. You can...

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I am not sure what pepsinogen is and I can't find it in any of my Biology books but pepsin is an enzyme in the stomach that...

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Short answer: Yes, the gases in the ozone layer (and elsewhere in the atmosphere, to a smaller extent) filter out UV-B and more...

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The ozone in the earth's upper atmosphere uniquely absorbs UV-B from our Sun, which would otherwise directly damage the DNA of...

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See the Web Links and Related Questions for some useful information about the field of chemistry and its impact on modern daily...

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You may be referring to vulcanization, the process that takes the native rubber of the rubber-tree plant and removes sulfur while...

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First, note that Kelvin in never expressed in degrees, just Temperature Kelvin (e.g., 50 K/ 50 Kelvin). Kelvin is a temperature...

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All you need to do for a simple wick is get some salt peter (potasum nitrate KNo3) dissolve in hot water and sock some string in...

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The only factor that determines the boiling point of water at any altitude is the barometric pressure (the altitude itself...

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In the law of conservation of mass (or matter), the mass in a system that is closed will be constant. This holds despite what...

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Because snow always scatters light, water never does and inclusions in solid ice can do sometimes. Or Many gases including...

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Gregor Mendel lived from 1822-1884 and he died of chronic nephritis. He found out how genetics work by planting various pea...

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Given below is the difference in electronegativity of any two elements: 0.0-0.4 = nonpolar covalent bond 0.4-1.7 = polar...

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For lack of oxygen in the water, you might want to consider activated carbon rock pouches in to your filtration system, or...

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The number of protons is equal to the atomic number of an atom. It is very important in knowing the number of electrons that...

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If it's still driving and the revs are increasing but the cars not going any faster I'd say 99% chance the clutch has worn...

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Electrolyte is defined as "the solution in which electricity is passed and radical moved towards their respective electrode"

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Plastics are polymers, and are composed primarily of carbon, hydrogen and oxygen. Polymers are just very long chains of atoms...

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There is a near-infinite list of what might effect reaction rates. Major, common factors are Temperature, Pressure, Solvents,...

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To draw a Lewis dot structure for a molecule or ion, follow these steps: Step 1: Count up the number of valence electrons for...

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I don't have an answer on this one yet. You never should have used that product in your pool. That is for sewer lines. It may...

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Ideally it should be neutral ot sightly basic: The proper pH for a pool is in the range of 7.2 to 7.6. Perfectly neutral...

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The most infamous of all foreign chemists is Bruno Tesch, sole owner of the firm of Tesch und Stabenow. Unfortunately, what he's...

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A polar molecule is a molecule that has a net dipole moment due to its having unsymmetrical polar bonds. There are two factors...

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Water...It has the highest substance heat capacity i.e. water requires the largest loss of heat per mole to change phase (to...

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Elsie is the name of a town in Michigan and Nebaska, it is also a cow, and a Quebec Politician. Elsie is a German Female name....

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The Ideal Gas Law is used to relate the pressure, volume, temperature and amount of an "ideal" gas. Although many gases are not...

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A variable is something which can change ie have different values. A manipulated variable is the variable which you deliberately...

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A Net Ionic Equation is a chemical equation for a reaction which lists only those species participating in the reaction. To...

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There are over 20 million known compounds. yeah, thats reason enough. There are over 100 billion possible compounds containing...

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Combined chlorine is when the chlorine molecule has attatched itself to other molecules in water. In other words it has...

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The basic metric liquid measurment is a Liter. A CC, or a cubic centimeter is 1/1000 liter. A milliliter is also called a cubic...

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One must be careful to distinguish between the pure metallic element called Calcium and the compound Calcium carbonate that has...

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I beg to differ that it does react in a HCl solution. But not the way the other guy said. NaClO4 + 8HCl = NaCl + 4Cl2 +...

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The modern periodic law states that, "the physical and chemical properties of elements are periodic functions of their atomic...

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It means that when you add an acid to water, for instance hydrochloric acid, or HCl, it will break apart into two ions H+ and...

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Go to http://www.rpw.com.au and they have turbo kits for the M21. The engine in your car is the same engine that comes with a...

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Hydrogen has H for a chemical symbol. And the origin of its name is due to the fact that water is formed when it is burned. 2H2...

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Your question, if I understand it correctly, asks to explain the reasoning behind the coordination number, or number of adjacent...

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Before writing a chemical reaction, you must know a few things. You must know what the reactants are, and what the molecular...

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To solve boiling point elevation problems, you need to know the following things: -- the identity of the solute (the thing you...

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Sugar when added to water makes water sweeter.It is harmful for diabetics and helpful to their heirs. Sugar crystals interact...

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No baking soda is sodium bicarbonate, and is a base not an acid. Muriatic acid is also called hydrochloric acid. Baking soda...

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Less than 335,000,000,000,000,000,000,000 for every kilogram. We don't know how much mass is in the universe "Less than...

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The octet rule is a simple chemical rule of thumb that states that atoms tend to combine in such a way that they each have eight...

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See the Related Links to the left for the answer for other lists. Atomic Numbers of the Elements: (atomic number, symbol, name,...

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hahaha do it yourself

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Ether is an organic functional group consisting of a disubstituted oxygen, or an oxygen atom bonded to 2 carbon atoms (if...

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NOTE: This is NOT the same as balancing a regular chemical reaction! Please see the related question to the left of this answer...

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NOTE: This is NOT the same as a WEAK acid solution. To find out how to find the pH of a weak acid, see the Related Questions to...

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First, you must draw the Lewis dot structure of the molecule. If you don't know how, look at the Related Questions link to the...

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The atomic number of Copper (Cu) is 29. See the Web Links for more information about copper to the left of this answer.

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Combustion is an exothermic reaction, meaning that it releases heat. The byproducts of a combustion reaction are heat,...

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an acid is below 7 on the pH scale and bases are above 7 on the pH scale.

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Because of its rarity and very short half-life, francium has no known uses (at least not industrially).

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Periodic acid is HIO4 or H5IO6. The name is not derived from "period", but from "iodine": per-iodic acid (compare iodic acid,...

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The Bohr model of the atom is based on four fundamental postulates. Although he did not claim to explain or prove these...

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128 U.S. ounces are in one U.S. gallon. 153.7 U.S. oz. in one U.K. gallon. OTOH; 160 oz.(U.K.) = one U.K. gallon 133.2 oz U.K...

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To dissolve an ionic compound, the liquid must be able to effectively stabilize the ions that result from breaking the ionic...

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Fire is the result of an oxidation reaction which gives off heat and light. It requires a fuel to burn, an oxidant (usually...

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4.5 lbs/gallon. That is just an average, because the weight of a gallon of milk that you buy at the grocery store would depend on...

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Boyle's Law: (P1 X V1)/T1 = (P2 X V2)/T2 applies to scuba diving since there is a significant change in the pressure. As the...

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Fire extinguishers can contain either: Wet: water Dry Chemical: sodium bicarbonate (baking soda) or potassium bicarbonate,...

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H | H----C----H | H The H's on the left bonded to the central H are supposed to be bonded to the C atom, it messed up when I...

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A strong base is defined as one that dissociates completely in water (see the Related Questions link to the left for a list of...

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To solve stoichiometry problems, you must first do two very important things. 1) Write a balanced equation for the...

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The atomic number of lithium (Li) is 3. The atomic weight of Li is 6.941 amu, and the molar mass 6.941 grams per mole. See the...

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This all depends on the element's atomic number (number of protons). Since atoms have the same number of protons as they do...

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The Atlantic is assigned six lists of names, with one list used each year. Every sixth year, the first list begins again. Each...

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Vaporization refers to any process that converts a substance in the liquid state into its gas state. There are two types of...

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Water is a member of a very exclusive group of substances that are less dense as a solid than as a liquid. It is very important...

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Boron has an electronic configuration of 1s22s22p1 (it has 5 electrons). In order to reach the stable electron configuration of a...

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The element is oxygen. The molecule or compound formed is O3, called ozone. The mixture this is commonly found in is air. The...

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The atomic number of aluminum (Al) is 13. The atomic weight of Al is 26.981539 amu, and the molar mass 26.981539 grams per mole....

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The atomic number of helium (He) is 2. The atomic weight of He is 4.002602 grams per mole. See the Web Links below for a...

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Elements in the periodic table are arranged in order of increasing atomic number (which is just the number of protons found in...

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NONE any commercially used optical brightener needs to be added to raw untreated material. I'm not sure the first answer...

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It is smaller than a liter. One US quart equals .95 liter; one liter equals 1.06 quarts.

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Common raw materials used for making glass consist of the following: Sand: finely divided rock and mineral particles, typically...

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An explosion is nothing more than the rapid release of energy. This is most commonly due to the rapid combustion of a material,...

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Currently a bushel of corn produces about 2.8 gallons of ethanol. With better varieties that figure will increase to 3 gallons....

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Water is originally used in the metric system to define what a kilogram is. When the metric system was originally developed,...

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The atomic number of oxygen (O) is 8 - this means that it's ionic charge is 2-. The atomic weight of O is 15.9994 grams per...

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Assuming we're not throwing ions into the flame and the color is due strictly to temperature, the blue flame is hotter. The...

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To find the molecular weight (also called the molecular mass or molar mass) of a compound or chemical, you need two things: the...

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the blue flame is hoter than the yellow flame. http://en.wikipedia.org/wiki/Flame hope this gives u the right picture

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No. In fact, variation in atmospheric pressure is one of the most useful forecasting tools there is. A low pressure center...

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== Pure ethanol freezes at -114 °C (-173.2 degree Fahrenheit)= Alcoholic beverages will freeze somewhere between -114 °C and 0...

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An example of a chemical change would be boiling an egg, once it's done it cannot be reversed. An example of a physical change...

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Yes, it is possible. To identify an object using its density you need only a few things: an accurate scale to find the mass of...

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You must first find the molar mass of the element or compound. Use the periodic table (see the link to the left of the answer)....

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According to Wikipedia: "Surfactants, also known as wetting agents, lower the surface tension of a liquid, allowing easier...

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A covalent bond is the sharing of electron pairs or electorns between two or more elements of near or same electronegativity....

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A Bunsen burner is a common piece of laboratory equipment. It is commonly used for heating chemical substances, sterilization,...

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Fresh water boils faster than salt water. Salt water will cook food a little quicker as it has a slightly higher boiling point...

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Normal phosphorus level is 2.5 - 4.5 mg/dl Ther is also an acid phosphatase and alkaline phosphatase.

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